CN104226464A - Comprehensive utilization method of metal tailing sand - Google Patents

Abstract

The invention discloses a comprehensive utilization method of metal tailing sand. According to the method, mineral separation and tight connection combination of building articles are completed simultaneously, so that waste tailing sand in each link can be changed into commodities through combined separation and later-stage comprehensive utilization, a high commercial value is achieved, the waste tailing sand can be changed into things of value from waste materials, the problems of environment pollution and potential safety hazards caused by the tailing sand are solved, fine metal powder, iron sulfide, building sand, concrete blocks and the like are separated by re-separating the tailing sand, and therefore high economic and social benefits are created.

Description

A kind of metal species CHARACTERISTICS OF TAILINGS SAND method of comprehensive utilization

Technical field

The present invention relates to metal species tailings utilizing field, be specifically related to a kind of metal species CHARACTERISTICS OF TAILINGS SAND method of comprehensive utilization.

Background technology

Discarded CHARACTERISTICS OF TAILINGS SAND is all the greatest problem of puzzlement person's Mineral Processing Enterprises all the time, pollutes the environment of this periphery simultaneously, is also the major source causing potential safety hazard.

Summary of the invention

For solving the problem, the invention provides a kind of metal species CHARACTERISTICS OF TAILINGS SAND method of comprehensive utilization, complete ore dressing to combine to building product compact siro spinning technology simultaneously, make the CHARACTERISTICS OF TAILINGS SAND of discarding by combination choosing and the comprehensive utilization in later stage, each link is made to become commodity, achieve very high commercial value, also turn waste into wealth simultaneously and solve CHARACTERISTICS OF TAILINGS SAND to the pollution of environment and potential safety hazard, by selecting again CHARACTERISTICS OF TAILINGS SAND, the Iron concentrate selected, iron sulfide, construction sand, concrete segment etc., create very high economic benefit and social benefit.

For achieving the above object, the technical scheme that the present invention takes is:

A kind of metal species CHARACTERISTICS OF TAILINGS SAND method of comprehensive utilization, comprises the steps:

S1, iron tailings sieve through rotary screen, remove impurity.

S2, fine grained mineral under the sieve of step S1 gained are entered intensity magnetic separator roughly select, rougher concentration enters ball mill, discharge material after ball mill grinding and get to high-frequency screen extension set through Pulp pump, on-the-sieve material merge laggard enter ball mill carry out regrind, undersize material enters magnetic separator, selects the iron ore concentrate of taste 63% after two roads are selected;

S3, the mine tailing that selected mine tailing and the magnetic separator of step S2 gained are roughly selected merged after, raise to pulp distributer through Pulp pump, enter spiral concentrator screening, obtain enrichment one, sulphur iron ore concentrate;

S4, the enrichment one of step S3 gained, sulphur iron ore concentrate are entered flotation device, through one roughing, once purging selection, twice selected after, select iron concentrate, mine tailings after flotation are raised to spiral chute through mortar pump and are carried out gravity treatment, obtain the hematite concentrates of enrichment, the mine tailing of spiral concentrator jettisoning arranges equipment to tailing dry with roughly selecting to raise through Pulp pump after the mine tailing throwing tail merges, and the mud of upper what stream enters mud veclamation pond, and the CHARACTERISTICS OF TAILINGS SAND of lower what stream makes construction sand by water elution mud;

A CHARACTERISTICS OF TAILINGS SAND part after S5, dry row is 80: 10: 10 mix and blends with grain slag, cement according to mass percent, batch mixing enters brickmaking machine baking-free brick machine, be pressed into the novel architecture bricks such as standard brick, octal brick, hollow brick, azulejo, curb, its feature adds intensity after adding grain slag, decrease weight, tailings utilizing rate is high by more than 70%, product all meet national sector standard.Another part is used as construction sand, and its feature is fine sand for building, is relatively applicable to plastering a wall, builds a wall, produces mortar series of products;

S6, by the mud of the overflow of step S4 gained and reclaim carry out recycling water utilization by mud veclamation pond.

The present invention completes ore dressing simultaneously and combines to building product compact siro spinning technology, make the CHARACTERISTICS OF TAILINGS SAND of discarding by combination choosing and the comprehensive utilization in later stage, each link is made to become commodity, achieve very high commercial value, also turn waste into wealth simultaneously and solve CHARACTERISTICS OF TAILINGS SAND to the pollution of environment and potential safety hazard, by selecting again CHARACTERISTICS OF TAILINGS SAND, the Iron concentrate selected, iron sulfide, construction sand, concrete segment etc., create very high economic benefit and social benefit.

Accompanying drawing explanation

Fig. 1 is the flow chart of a kind of metal species CHARACTERISTICS OF TAILINGS SAND of embodiment of the present invention method of comprehensive utilization.

Detailed description of the invention

In order to make objects and advantages of the present invention clearly understand, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.

This concrete facilities and equipments type selecting:

1, cylinder round sifter

Cylinder round sifter is that relay moves vibratory sieve, novel self-cleaning type sieve material special equipment of another generation after the plain edition net-shaped drum sieve that domestic each major company produces, it is widely used in the screening that particle diameter is less than the various solid material of below 300mm, has the various features such as screening efficiency is high, noise is low, dust emission is little, long service life, a little repair, maintenance convenience.

2, magnetic separator

Intensity magnetic separator forms primarily of a becket (interior sieve grate 8 is divided into 40 grid, and grid is built with spherical medium) and " day " font magnetic system A.Annulus vertical rotary is between two magnetic poles, bottom is by magnetic field, and ore pulp feeds in ring by bottom ore feeder in ring by ring inner circle sieve grate, and weakly magnetic mineral grain sticks to dielectric ring surface, rotate with annulus and rise to the very weak top of magnetic field intensity, poured in concentrate hopper by water under high pressure.Non magnetic ore particle, owing to not passing through medium ball space by magneticaction, flows in tail-box.

3, wet type grate ball mill

The operation principle of wet ball mill is that motor drives cylindrical shell revolution by deceleration device, due to Action of Gravity Field after broken ore in cylindrical shell and steel ball are taken to certain altitude by friction and centrifugal action by liner plate when cylindrical shell turns round, just produce and leave and rush down, ore is progressively pulverized under impact and abrasive action.Pulverized ore is outside discharge portion expelling tube.The mineral of discharging in spiral classifier classified go out after qualified products, coarse sand is returned in ball mill by co-feeding device and continues grinding.Feeding machine continuous uniform ground feeding, ore enters ball mill through co-feeding device continuous uniform, and the material be grated is discharged continuously from ball mill.

4, spiral concentrator

The ore separators be made up of in the shape of a spiral around vertical axis a narrow-long groove.Channel section is oval linear, and be provided with interceptor in groove, concentrate, chats take out from interceptor, and mine tailing is discharged from groove tail.Assorting room is: ore pulp, after upper end feeds, is mass-sending layer estranged along grain in groove flow process.The heavy suite entering bottom trends towards to the motion of groove inner edge, and light mineral is then thrown toward outer rim in gyration fast, thus the mineral making density different expand a point band in groove, are discharged by the heavy mineral of inner edge by interceptor.Spiral concentrator structure is simple, and unit capacity is large, and itself does not need power.

5, inflating mechanical inflatable agitated flotation cell

KYF type flotation machine is a kind of deep trouth inflating mechanical agitation type flotation machine, adopts U-type groove body and hollow shaft inflation.Its unique distinction have employed the single wall hypsokinesis blade back taper mesa-shaped impeller of original creation, Round Porous tubular gas distributor, less hanging type stator and central movable to push away the structures such as bubble plate, these facility have structure simple, easy for installation, ore pulp short circuit can be reduced and prevent bottom land sand setting, effectively utilize bubble, save fan delivery, energy consumption is low, ore deposit liquid level stabilizing, the rate of recovery are high, stopping does not need the advantages such as ore drawing, performance reaches and has exceeded the level of OK flotation device of external advanced person.

XCF type flotation machine is a kind of novel, efficient, inflating mechanical agitation type flotation machine with midge ability, and solving inflating mechanical agitation type flotation machine can not the problem of self-priming ore pulp, and technical performance is reached advanced world standards.This equipment is primarily of impeller) stator mechanism, central tube, cover plate, mineral-feeding pipe, the parts composition such as middle pipe and cell body.During work, vane rotary, its blade aspirates to ore deposit and chats, and in groove, ore pulp is at the bottom of surrounding arrival slot, is then drawn between its lower blade by impeller from bottom; Meanwhile, the low-pressure air supplied by air blast is also entered between impeller lower blade by distributor.Ore pulp and air are discharged to surrounding by impeller lower blade after fully mixing between impeller lower blade, to enter in groove in main body ore pulp together with the ore pulp that impeller blade is discharged after surrounding stator current stabilization and orientation, mineral laden bubble rises to ore pulp surface in groove and forms froth bed, the circulation of part ore pulp returns impeller lower blade, and another part enters next groove by the opening on groove partition and selects.This flotation device can be used alone, also can with the flotation device conbined usage without suction capacity such as KYF type, make each section of flotation operation horizontal arrangement, do not need other auxiliary equipment.

6, pulsed stand-alone sack cleaner

Dusty gas is entered by casing middle and lower part in deduster, and by filter bag by dust detention face outside filter bag, pure qi (oxygen) enters in bag and discharged by blower fan to upper box.Along with the prolongation of filtration time, the dust layer on filter bag is constantly long-pending thick, and the resistance of cleaner constantly rises, and when equipment resistance rises to certain value, deashing device starts deashing under the control of pulse control instrument.During deashing, compressed air, sprayed to filter bag through injection tube sequentially through pulse valve with the extremely short time, and the dust be attached on filter bag outer surface departs from filter bag and falls into ash bucket, drawer or directly fall in storehouse.Deashing terminates deduster and recovers normal work.Under the effect of pulse control unit, carry out loop cycle deashing by certain requirement, make deduster remain good working order.

8, QFT10-15 type automatic hydraulic press

As shown in Figure 1, embodiments provide a kind of metal species CHARACTERISTICS OF TAILINGS SAND method of comprehensive utilization, comprise the steps:

S1, iron tailings sieve through rotary screen, and remove impurity, screenings enters belt magnetic drum and carries out sorting, selects magnetic mineral;

S2, fine grained mineral under the sieve of step S1 gained are entered intensity magnetic separator roughly select, rougher concentration enters ball mill, discharge material after ball mill grinding and get to high-frequency screen extension set through Pulp pump, on-the-sieve material merge laggard enter ball mill carry out regrind, undersize material enters magnetic separator, selects the iron ore concentrate of taste 63% after two roads are selected;

S3, the mine tailing that selected mine tailing and the magnetic separator of step S2 gained are roughly selected merged after, raise to pulp distributer through Pulp pump, enter spiral concentrator screening, obtain enrichment one, sulphur iron ore concentrate;

S4, the enrichment one of step S3 gained, sulphur iron ore concentrate are entered flotation device, through one roughing, once purging selection, twice selected after, select iron concentrate, mine tailings after flotation are raised to spiral chute through mortar pump and are carried out gravity treatment, obtain the hematite concentrates of enrichment, the mine tailing of spiral concentrator jettisoning arranges equipment to tailing dry with roughly selecting to raise through Pulp pump after the mine tailing throwing tail merges, and the mud of upper what stream enters mud veclamation pond, and the CHARACTERISTICS OF TAILINGS SAND of lower what stream makes construction sand by water elution mud;

A CHARACTERISTICS OF TAILINGS SAND part after S5, dry row is 80: 10: 10 mix and blends with grain slag, cement according to mass percent, batch mixing enters brickmaking machine baking-free brick machine, be pressed into the novel architecture bricks such as standard brick, octal brick, hollow brick, azulejo, curb, its feature adds intensity after adding grain slag, decrease weight, tailings utilizing rate is high by more than 70%, product all meet national sector standard.Another part is used as construction sand, and its feature is fine sand for building, is relatively applicable to plastering a wall, builds a wall, produces mortar series of products;

S6, by the mud of the overflow of step S4 gained and reclaim carry out recycling water utilization by mud veclamation pond.

The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (1)

1. a metal species CHARACTERISTICS OF TAILINGS SAND method of comprehensive utilization, is characterized in that, comprises the steps:

S1, iron tailings sieve through rotary screen, remove impurity.

S2, fine grained mineral under the sieve of step S1 gained are entered intensity magnetic separator roughly select, rougher concentration enters ball mill, discharge material after ball mill grinding and get to high-frequency screen extension set through Pulp pump, on-the-sieve material merge laggard enter ball mill carry out regrind, undersize material enters magnetic separator, selects the iron ore concentrate of taste 63% after two roads are selected;

S3, the mine tailing that selected mine tailing and the magnetic separator of step S2 gained are roughly selected merged after, raise to pulp distributer through Pulp pump, enter spiral concentrator screening, obtain enrichment one, sulphur iron ore concentrate;

S4, the enrichment one of step S3 gained, sulphur iron ore concentrate are entered flotation device, through one roughing, once purging selection, twice selected after, select iron concentrate, mine tailings after flotation are raised to spiral chute through mortar pump and are carried out gravity treatment, obtain the hematite concentrates of enrichment, the mine tailing of spiral concentrator jettisoning arranges equipment to tailing dry with roughly selecting to raise through Pulp pump after the mine tailing throwing tail merges, and the mud of upper what stream enters mud veclamation pond, and the CHARACTERISTICS OF TAILINGS SAND of lower what stream makes construction sand by water elution mud;

A CHARACTERISTICS OF TAILINGS SAND part after S5, dry row is 80: 10: 10 mix and blends with grain slag, cement according to mass percent, batch mixing enters brickmaking machine baking-free brick machine, be pressed into the novel architecture bricks such as standard brick, octal brick, hollow brick, azulejo, curb, another part is used as construction sand;

S6, by the mud of the overflow of step S4 gained and reclaim carry out recycling water utilization by mud veclamation pond.